diff --git a/.env.sample b/.env.sample
index eb57ad85c6..51046501da 100644
--- a/.env.sample
+++ b/.env.sample
@@ -12,14 +12,14 @@ UTILS_SECRET=generate_a_new_key
 
 # For production point these at your databases, in development the default
 # should work out of the box.
-DATABASE_URL=postgres://user:pass@localhost:5432/outline
+DATABASE_URL=postgres://user:pass@postgres:5432/outline
 DATABASE_CONNECTION_POOL_MIN=
 DATABASE_CONNECTION_POOL_MAX=
 # Uncomment this to disable SSL for connecting to Postgres
 # PGSSLMODE=disable
 
 # For redis you can either specify an ioredis compatible url like this
-REDIS_URL=redis://localhost:6379
+REDIS_URL=redis://redis:6379
 # or alternatively, if you would like to provide additional connection options,
 # use a base64 encoded JSON connection option object. Refer to the ioredis documentation
 # for a list of available options.